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Improper Input Validation Affecting bind-export-libs package, versions <32:9.11.36-3.el8

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.34% (72nd percentile)
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NVD
5.3 medium
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SUSE
5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-CENTOS8-BINDEXPORTLIBS-1961612
  • published 29 Oct 2021
  • disclosed 27 Oct 2021
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Introduced: 27 Oct 2021

CVE-2021-25219 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Centos:8 bind-export-libs to version 32:9.11.36-3.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-export-libs package and not the bind-export-libs package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

References